The WP-DC28 Underwater Case has been specifically designed for the Canon PowerShot G10 Digital Camera and is waterproof down to the depth of 130 ft. (40m). This clear and durable polycarbonate case shields your digital camera as you explore your underwater surroundings. A tight O-ring main seal with safety lock, along with stainless steel and nickel-plated brass hardware, help to ensure protection from corrosion for years to come. A fluorite (FL) glass window gives your digital camera's high quality Canon lens the protection and clear view it needs to deliver crisp detail and vibrant color. A flash diffusion plate allows you to use your camera's internal flash.